NovoRapid FlexPen 100 IU/ml is a fast-acting insulin injection pen designed for convenient and precise insulin delivery. This pen contains 3 ml of insulin aspart, a rapid-acting insulin analog that helps control blood sugar levels in people with diabetes. The key active ingredient, insulin aspart, mimics the natural insulin produced by the body, allowing for quick absorption and action. NovoRapid FlexPen is easy to use and provides flexibility in dosing, making it ideal for managing mealtime insulin needs. The pen's mechanism of action involves lowering blood sugar levels by facilitating the uptake of glucose into cells for energy production. This insulin pen offers a reliable and effective solution for individuals requiring fast-acting insulin therapy.